The question asks whether "A collection of teachers who teach in 6th grade in your school" is a well-defined set. A well-defined set is a set where it is clear whether an element belongs to the set or not.
2025/5/7
1. Problem Description
The question asks whether "A collection of teachers who teach in 6th grade in your school" is a well-defined set. A well-defined set is a set where it is clear whether an element belongs to the set or not.
2. Solution Steps
To determine if the set is well-defined, we must evaluate if, given a teacher, we can definitively determine if the teacher is in the set. In this case, the condition for a teacher to be in the set is: the teacher must teach in 6th grade in your school.
Since your school is fixed, and the teachers are from that school, we can always check if a teacher teaches 6th grade at that school. Therefore, the set is well-defined.
3. Final Answer
The set is well-defined.